AS & A Level Computer Science (9618) — May–June 2023, Paper 32
11 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Numbers are stored in a computer using floating point representation with: - 10 bits for the mantissa - 6 bits for the exponent - two's complement form for both the mantissa and…
Answer this question and get it marked →Describe how records are organised and accessed in a sequential file.
Answer this question and get it marked →The syntax diagrams for 'digit', 'letter' and 'variable' are shown on page 4. State whether each variable is valid or invalid and give a reason for your choice in each case. 9SW…
Answer this question and get it marked →Draw one line from each Object-Oriented Programming (OOP) term to its most appropriate description. OOP terms: - Encapsulation - Getters - Polymorphism - Setters Descriptions: -…
Answer this question and get it marked →Encryption is used to scramble data to make it meaningless if intercepted. Describe the purpose of quantum cryptography.
Answer this question and get it marked →Write pseudocode statements to declare the composite data type, TAppointments, to hold data about patients for a dental clinic. It will include for each patient: - name (first…
Answer this question and get it marked →State two examples of where it would be appropriate to use packet switching.
Answer this question and get it marked →Describe the use of pipelining in Reduced Instruction Set Computers (RISC).
Answer this question and get it marked →The given truth table (with inputs A, B, C, D and output Z) represents a logic circuit. Write the Boolean logic expression that corresponds to the given truth table as the…
Answer this question and get it marked →State one category of machine learning.
Answer this question and get it marked →The pseudocode shown represents a queue Abstract Data Type (ADT) with procedures for initialisation and to add new items. It is incomplete. CONSTANT MaxLength = 50 DECLARE…
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